alot: 0.3.6 -> 0.3.7, fixes #12914

Version bump.
The checks are back again, so far alot has no tests at all.
Add urwidtrees dependency.

The themes are copied to the derivation and set as default directory.

pkgs/top-level/python-packages.nix

@@ -554,28 +554,35 @@ in modules // {
 
 
   alot = buildPythonPackage rec {
-    rev = "0.3.6";
-    name = "alot-0.3.6";
+    rev = "0.3.7";
+    name = "alot-${rev}";
 
-    src = pkgs.fetchurl {
-      url = "https://github.com/pazz/alot/tarball/${rev}";
-      name = "${name}.tar.bz";
-      sha256 = "1rzy70w4isvypa94310xw403vq5him21q8rlx4laa0z530phkrmq";
+    src = pkgs.fetchFromGitHub {
+      owner = "pazz";
+      repo = "alot";
+      inherit rev;
+      sha256 = "0sscmmf42gsrjbisi6wm01alzlnq6wqhpwkm8pc557075jfg19il";
     };
 
-    # error: invalid command 'test'
-    doCheck = false;
+    postPatch = ''
+      substituteInPlace alot/defaults/alot.rc.spec \
+        --replace "themes_dir = string(default=None)" \
+                  "themes_dir = string(default='$out/share/themes')"
+    '';
 
     propagatedBuildInputs =
       [ self.notmuch
         self.urwid
+        self.urwidtrees
         self.twisted
-        self.magic
+        self.python_magic
         self.configobj
         self.pygpgme
       ];
 
     postInstall = ''
+      mkdir -p $out/share
+      cp -r extra/themes $out/share
       wrapProgram $out/bin/alot \
         --prefix LD_LIBRARY_PATH : ${pkgs.notmuch}/lib:${pkgs.file}/lib:${pkgs.gpgme}/lib
     '';
@@ -583,7 +590,7 @@ in modules // {
     meta = {
       homepage = https://github.com/pazz/alot;
       description = "Terminal MUA using notmuch mail";
-      maintainers = with maintainers; [ garbas ];
+      maintainers = with maintainers; [ garbas profpatsch ];
     };
   };
 
@@ -21060,6 +21067,26 @@ in modules // {
     };
   });
 
+  urwidtrees = buildPythonPackage rec {
+    name = "urwidtrees-${rev}";
+    rev = "1.0";
+
+    src = pkgs.fetchFromGitHub {
+      owner = "pazz";
+      repo = "urwidtrees";
+      inherit rev;
+      sha256 = "03gpcdi45z2idy1fd9zv8v9naivmpfx65hshm8r984k9wklv1dsa";
+    };
+
+    propagatedBuildInputs = with self; [ urwid ];
+
+    meta = {
+      description = "Tree widgets for urwid";
+      license = licenses.gpl3;
+      maintainer = with maintainters; [ profpatsch ];
+    };
+  };
+
   pyuv = buildPythonPackage rec {
     name = "pyuv-0.11.5";
     disabled = isPyPy;  # see https://github.com/saghul/pyuv/issues/49